Altaic etymology :

Comments:EAS 58, KW 53, Владимирцов 277, Poppe 21 (although words for 'slave' should be kept apart, see *bŏga); Дыбо 15 compares TM *bōki-, see *bṑki. A Western isogloss. Shortness and high tone are reconstructed because of Mong. *b-; note, however, that Mong. can be borrowed from Turk. (see TMN 2, 346, Щербак 1997, 108). If this is the case, the real Mong. reflex could be *bög-si- 'choke', *böɣe-lǯi- 'vomit', suggesting a reconstruction *pŏ́ge or *pŏ́gi.